/*
A firecracker explodes at a height of 100 m above level ground. It breaks into a large number of very small fragments, which move in every direction; all of them have the same initial velocity of 20 m/s.


We assume that the fragments move without air resistance, in a uniform gravitational field with g=9.81 m/s2.


Find the volume (in m3) of the region through which the fragments move before reaching the ground. 
Give your answer rounded to four decimal places.

Anser:
Time:
*/
package main

import (
	"fmt"
	"time"
)

func main() {
	tstart := time.Now()



	tend := time.Now()
	fmt.Println(tend.Sub(tstart))
}